On March 6, 2021, Lodewijk Frederik Ottens aka Lou Ottens, died aged 94. He was inventor and engineer, known as the inventor of the audio cassette tape. Nearly 20 years after Philips introduced cassette tapes, Ottens helped the company to develop compact disc technology and, with Sony, to create audio format that would become the industry standard. In 2016, Ottens appeared in a film, “Cassette: A Documentary Mixtape”. The director, Zack Farmer, likened the creation of the cassette to “trying to paint a masterpiece on a postage stamp”.